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lifei0715:如附件,PC,PMMA,玻璃BK-7 (2024-01-18 12:56) |@Bl?Bs+
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kwanlee:玻璃BK-7透光率是多少的? 有20%透光率的玻璃文件吗? 感谢!!! (2024-02-01 20:58) 4cDjf~n
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lifei0715:如附件,PC,PMMA,玻璃BK-7 (2024-01-18 12:56) $v5)d J
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